Ex. 1: Age, use, cover, recite, borrow (Возраст, использовать, покрывать (в качестве сущ. как обложка), читать вслух, занимать)
Ex. 3: 1. Life 2. Teenager 3. Grown-up 4. Не знаю
Ex. 4: 1. I don't like to recite the poems. 2. I was able to read at the age of 5. 3. We can borrow a lot of books from the library. 4. All the children know how to use a computer. 5. We went to school at the age of 6. 7. The cover is so bright!